Home / 4,312.16-6,468.84-1,389.48

Finding the Fourth Proportional to 4,312.16, 6,468.84 and 1,389.48

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Solution

The fourth proportional to 4,312.16, 6,468.84 and 1,389.48 is: 2,084.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,312.16 : 6,468.84 = 1,389.48 : x
  2. Step 2: Convert to fraction form
    4,312.16/6,468.84 = 1,389.48/x
  3. Step 3: Cross multiply
    4,312.16x = 6,468.84 × 1,389.48
  4. Step 4: Simplify right side
    4,312.16x = 8,988,323.80
  5. Step 5: Solve for x
    x = 8,988,323.80/4,312.16
  6. Step 6: Final answer
    x = 2,084.41

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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.