Home / 4,315.60-6,470.36-1,681.08

Finding the Fourth Proportional to 4,315.60, 6,470.36 and 1,681.08

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Solution

The fourth proportional to 4,315.60, 6,470.36 and 1,681.08 is: 2,520.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,315.60 : 6,470.36 = 1,681.08 : x
  2. Step 2: Convert to fraction form
    4,315.60/6,470.36 = 1,681.08/x
  3. Step 3: Cross multiply
    4,315.60x = 6,470.36 × 1,681.08
  4. Step 4: Simplify right side
    4,315.60x = 10,877,192.79
  5. Step 5: Solve for x
    x = 10,877,192.79/4,315.60
  6. Step 6: Final answer
    x = 2,520.44

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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.