Home / 5,397.40-8,084.76-2,478.16

Finding the Fourth Proportional to 5,397.40, 8,084.76 and 2,478.16

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Solution

The fourth proportional to 5,397.40, 8,084.76 and 2,478.16 is: 3,712.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,397.40 : 8,084.76 = 2,478.16 : x
  2. Step 2: Convert to fraction form
    5,397.40/8,084.76 = 2,478.16/x
  3. Step 3: Cross multiply
    5,397.40x = 8,084.76 × 2,478.16
  4. Step 4: Simplify right side
    5,397.40x = 20,035,328.84
  5. Step 5: Solve for x
    x = 20,035,328.84/5,397.40
  6. Step 6: Final answer
    x = 3,712.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.