Home / 5,685.90-7,842.53-3,328.51

Finding the Fourth Proportional to 5,685.90, 7,842.53 and 3,328.51

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Solution

The fourth proportional to 5,685.90, 7,842.53 and 3,328.51 is: 4,591.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.90 : 7,842.53 = 3,328.51 : x
  2. Step 2: Convert to fraction form
    5,685.90/7,842.53 = 3,328.51/x
  3. Step 3: Cross multiply
    5,685.90x = 7,842.53 × 3,328.51
  4. Step 4: Simplify right side
    5,685.90x = 26,103,939.53
  5. Step 5: Solve for x
    x = 26,103,939.53/5,685.90
  6. Step 6: Final answer
    x = 4,591.00

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Half 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.