Home / 5,428.48-7,507.08-5,330.10

Finding the Fourth Proportional to 5,428.48, 7,507.08 and 5,330.10

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Solution

The fourth proportional to 5,428.48, 7,507.08 and 5,330.10 is: 7,371.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.48 : 7,507.08 = 5,330.10 : x
  2. Step 2: Convert to fraction form
    5,428.48/7,507.08 = 5,330.10/x
  3. Step 3: Cross multiply
    5,428.48x = 7,507.08 × 5,330.10
  4. Step 4: Simplify right side
    5,428.48x = 40,013,487.11
  5. Step 5: Solve for x
    x = 40,013,487.11/5,428.48
  6. Step 6: Final answer
    x = 7,371.03

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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.