Home / 5,390.40-8,084.16-1,495.20

Finding the Fourth Proportional to 5,390.40, 8,084.16 and 1,495.20

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Solution

The fourth proportional to 5,390.40, 8,084.16 and 1,495.20 is: 2,242.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.40 : 8,084.16 = 1,495.20 : x
  2. Step 2: Convert to fraction form
    5,390.40/8,084.16 = 1,495.20/x
  3. Step 3: Cross multiply
    5,390.40x = 8,084.16 × 1,495.20
  4. Step 4: Simplify right side
    5,390.40x = 12,087,436.03
  5. Step 5: Solve for x
    x = 12,087,436.03/5,390.40
  6. Step 6: Final answer
    x = 2,242.40

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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.