Home / 7,470.73-10,312.21-4,640.29

Finding the Fourth Proportional to 7,470.73, 10,312.21 and 4,640.29

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Solution

The fourth proportional to 7,470.73, 10,312.21 and 4,640.29 is: 6,405.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.73 : 10,312.21 = 4,640.29 : x
  2. Step 2: Convert to fraction form
    7,470.73/10,312.21 = 4,640.29/x
  3. Step 3: Cross multiply
    7,470.73x = 10,312.21 × 4,640.29
  4. Step 4: Simplify right side
    7,470.73x = 47,851,624.96
  5. Step 5: Solve for x
    x = 47,851,624.96/7,470.73
  6. Step 6: Final answer
    x = 6,405.21

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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.