Home / 8,528.18-12,791.46-2,980.50

Finding the Fourth Proportional to 8,528.18, 12,791.46 and 2,980.50

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Solution

The fourth proportional to 8,528.18, 12,791.46 and 2,980.50 is: 4,470.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.18 : 12,791.46 = 2,980.50 : x
  2. Step 2: Convert to fraction form
    8,528.18/12,791.46 = 2,980.50/x
  3. Step 3: Cross multiply
    8,528.18x = 12,791.46 × 2,980.50
  4. Step 4: Simplify right side
    8,528.18x = 38,124,946.53
  5. Step 5: Solve for x
    x = 38,124,946.53/8,528.18
  6. Step 6: Final answer
    x = 4,470.47

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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.