Home / 7,828.15-10,802.45-4,470.31

Finding the Fourth Proportional to 7,828.15, 10,802.45 and 4,470.31

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Solution

The fourth proportional to 7,828.15, 10,802.45 and 4,470.31 is: 6,168.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.15 : 10,802.45 = 4,470.31 : x
  2. Step 2: Convert to fraction form
    7,828.15/10,802.45 = 4,470.31/x
  3. Step 3: Cross multiply
    7,828.15x = 10,802.45 × 4,470.31
  4. Step 4: Simplify right side
    7,828.15x = 48,290,250.90
  5. Step 5: Solve for x
    x = 48,290,250.90/7,828.15
  6. Step 6: Final answer
    x = 6,168.79

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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.