Home / 7,130.08-9,840.24-4,479.52

Finding the Fourth Proportional to 7,130.08, 9,840.24 and 4,479.52

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Solution

The fourth proportional to 7,130.08, 9,840.24 and 4,479.52 is: 6,182.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.08 : 9,840.24 = 4,479.52 : x
  2. Step 2: Convert to fraction form
    7,130.08/9,840.24 = 4,479.52/x
  3. Step 3: Cross multiply
    7,130.08x = 9,840.24 × 4,479.52
  4. Step 4: Simplify right side
    7,130.08x = 44,079,551.88
  5. Step 5: Solve for x
    x = 44,079,551.88/7,130.08
  6. Step 6: Final answer
    x = 6,182.20

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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.