Home / 4,390.61-6,585.56-1,312.61

Finding the Fourth Proportional to 4,390.61, 6,585.56 and 1,312.61

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Solution

The fourth proportional to 4,390.61, 6,585.56 and 1,312.61 is: 1,968.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390.61 : 6,585.56 = 1,312.61 : x
  2. Step 2: Convert to fraction form
    4,390.61/6,585.56 = 1,312.61/x
  3. Step 3: Cross multiply
    4,390.61x = 6,585.56 × 1,312.61
  4. Step 4: Simplify right side
    4,390.61x = 8,644,265.35
  5. Step 5: Solve for x
    x = 8,644,265.35/4,390.61
  6. Step 6: Final answer
    x = 1,968.81

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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.