Home / 3,113.40-4,672.13-1,470.45

Finding the Fourth Proportional to 3,113.40, 4,672.13 and 1,470.45

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Solution

The fourth proportional to 3,113.40, 4,672.13 and 1,470.45 is: 2,206.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.40 : 4,672.13 = 1,470.45 : x
  2. Step 2: Convert to fraction form
    3,113.40/4,672.13 = 1,470.45/x
  3. Step 3: Cross multiply
    3,113.40x = 4,672.13 × 1,470.45
  4. Step 4: Simplify right side
    3,113.40x = 6,870,126.21
  5. Step 5: Solve for x
    x = 6,870,126.21/3,113.40
  6. Step 6: Final answer
    x = 2,206.63

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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.