Home / 3,060.24-4,590.64-980.16

Finding the Fourth Proportional to 3,060.24, 4,590.64 and 980.16

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Solution

The fourth proportional to 3,060.24, 4,590.64 and 980.16 is: 1,470.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.24 : 4,590.64 = 980.16 : x
  2. Step 2: Convert to fraction form
    3,060.24/4,590.64 = 980.16/x
  3. Step 3: Cross multiply
    3,060.24x = 4,590.64 × 980.16
  4. Step 4: Simplify right side
    3,060.24x = 4,499,561.70
  5. Step 5: Solve for x
    x = 4,499,561.70/3,060.24
  6. Step 6: Final answer
    x = 1,470.33

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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.