Home / 7,428.02-10,240.05-5,299.91

Finding the Fourth Proportional to 7,428.02, 10,240.05 and 5,299.91

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Solution

The fourth proportional to 7,428.02, 10,240.05 and 5,299.91 is: 7,306.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.02 : 10,240.05 = 5,299.91 : x
  2. Step 2: Convert to fraction form
    7,428.02/10,240.05 = 5,299.91/x
  3. Step 3: Cross multiply
    7,428.02x = 10,240.05 × 5,299.91
  4. Step 4: Simplify right side
    7,428.02x = 54,271,343.40
  5. Step 5: Solve for x
    x = 54,271,343.40/7,428.02
  6. Step 6: Final answer
    x = 7,306.31

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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.