Home / 5,384.59-7,428.45-3,287.50

Finding the Fourth Proportional to 5,384.59, 7,428.45 and 3,287.50

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Solution

The fourth proportional to 5,384.59, 7,428.45 and 3,287.50 is: 4,535.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.59 : 7,428.45 = 3,287.50 : x
  2. Step 2: Convert to fraction form
    5,384.59/7,428.45 = 3,287.50/x
  3. Step 3: Cross multiply
    5,384.59x = 7,428.45 × 3,287.50
  4. Step 4: Simplify right side
    5,384.59x = 24,421,029.38
  5. Step 5: Solve for x
    x = 24,421,029.38/5,384.59
  6. Step 6: Final answer
    x = 4,535.36

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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.