Home / 5,428.28-7,484.46-4,587.50

Finding the Fourth Proportional to 5,428.28, 7,484.46 and 4,587.50

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Solution

The fourth proportional to 5,428.28, 7,484.46 and 4,587.50 is: 6,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.28 : 7,484.46 = 4,587.50 : x
  2. Step 2: Convert to fraction form
    5,428.28/7,484.46 = 4,587.50/x
  3. Step 3: Cross multiply
    5,428.28x = 7,484.46 × 4,587.50
  4. Step 4: Simplify right side
    5,428.28x = 34,334,960.25
  5. Step 5: Solve for x
    x = 34,334,960.25/5,428.28
  6. Step 6: Final answer
    x = 6,325.20

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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.