Home / 4,478.47-6,180-2,488.90

Finding the Fourth Proportional to 4,478.47, 6,180 and 2,488.90

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Solution

The fourth proportional to 4,478.47, 6,180 and 2,488.90 is: 3,434.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.47 : 6,180 = 2,488.90 : x
  2. Step 2: Convert to fraction form
    4,478.47/6,180 = 2,488.90/x
  3. Step 3: Cross multiply
    4,478.47x = 6,180 × 2,488.90
  4. Step 4: Simplify right side
    4,478.47x = 15,381,402
  5. Step 5: Solve for x
    x = 15,381,402/4,478.47
  6. Step 6: Final answer
    x = 3,434.52

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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.