Home / 4,237.55-6,356.41-1,315.78

Finding the Fourth Proportional to 4,237.55, 6,356.41 and 1,315.78

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Solution

The fourth proportional to 4,237.55, 6,356.41 and 1,315.78 is: 1,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,237.55 : 6,356.41 = 1,315.78 : x
  2. Step 2: Convert to fraction form
    4,237.55/6,356.41 = 1,315.78/x
  3. Step 3: Cross multiply
    4,237.55x = 6,356.41 × 1,315.78
  4. Step 4: Simplify right side
    4,237.55x = 8,363,637.15
  5. Step 5: Solve for x
    x = 8,363,637.15/4,237.55
  6. Step 6: Final answer
    x = 1,973.70

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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.