Home / 4,972.80-7,459.20-3,417.60

Finding the Fourth Proportional to 4,972.80, 7,459.20 and 3,417.60

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Solution

The fourth proportional to 4,972.80, 7,459.20 and 3,417.60 is: 5,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,972.80 : 7,459.20 = 3,417.60 : x
  2. Step 2: Convert to fraction form
    4,972.80/7,459.20 = 3,417.60/x
  3. Step 3: Cross multiply
    4,972.80x = 7,459.20 × 3,417.60
  4. Step 4: Simplify right side
    4,972.80x = 25,492,561.92
  5. Step 5: Solve for x
    x = 25,492,561.92/4,972.80
  6. Step 6: Final answer
    x = 5,126.40

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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.