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Finding the Fourth Proportional to 3,124.92, 4,312.26 and 1,798.82

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Solution

The fourth proportional to 3,124.92, 4,312.26 and 1,798.82 is: 2,482.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.92 : 4,312.26 = 1,798.82 : x
  2. Step 2: Convert to fraction form
    3,124.92/4,312.26 = 1,798.82/x
  3. Step 3: Cross multiply
    3,124.92x = 4,312.26 × 1,798.82
  4. Step 4: Simplify right side
    3,124.92x = 7,756,979.53
  5. Step 5: Solve for x
    x = 7,756,979.53/3,124.92
  6. Step 6: Final answer
    x = 2,482.30

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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.