Home / 7,242.18-10,002.42-4,880.22

Finding the Fourth Proportional to 7,242.18, 10,002.42 and 4,880.22

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Solution

The fourth proportional to 7,242.18, 10,002.42 and 4,880.22 is: 6,740.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.18 : 10,002.42 = 4,880.22 : x
  2. Step 2: Convert to fraction form
    7,242.18/10,002.42 = 4,880.22/x
  3. Step 3: Cross multiply
    7,242.18x = 10,002.42 × 4,880.22
  4. Step 4: Simplify right side
    7,242.18x = 48,814,010.13
  5. Step 5: Solve for x
    x = 48,814,010.13/7,242.18
  6. Step 6: Final answer
    x = 6,740.24

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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.