Home / 4,987.20-7,479.36-1,700.22

Finding the Fourth Proportional to 4,987.20, 7,479.36 and 1,700.22

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Solution

The fourth proportional to 4,987.20, 7,479.36 and 1,700.22 is: 2,549.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.20 : 7,479.36 = 1,700.22 : x
  2. Step 2: Convert to fraction form
    4,987.20/7,479.36 = 1,700.22/x
  3. Step 3: Cross multiply
    4,987.20x = 7,479.36 × 1,700.22
  4. Step 4: Simplify right side
    4,987.20x = 12,716,557.46
  5. Step 5: Solve for x
    x = 12,716,557.46/4,987.20
  6. Step 6: Final answer
    x = 2,549.84

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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.