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Finding the Fourth Proportional to 4,502.69, 6,210.95 and 2,990.32

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Solution

The fourth proportional to 4,502.69, 6,210.95 and 2,990.32 is: 4,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,502.69 : 6,210.95 = 2,990.32 : x
  2. Step 2: Convert to fraction form
    4,502.69/6,210.95 = 2,990.32/x
  3. Step 3: Cross multiply
    4,502.69x = 6,210.95 × 2,990.32
  4. Step 4: Simplify right side
    4,502.69x = 18,572,728.00
  5. Step 5: Solve for x
    x = 18,572,728.00/4,502.69
  6. Step 6: Final answer
    x = 4,124.81

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.