Home / 3,126.86-4,713.72-2,915.46

Finding the Fourth Proportional to 3,126.86, 4,713.72 and 2,915.46

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Solution

The fourth proportional to 3,126.86, 4,713.72 and 2,915.46 is: 4,395.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.86 : 4,713.72 = 2,915.46 : x
  2. Step 2: Convert to fraction form
    3,126.86/4,713.72 = 2,915.46/x
  3. Step 3: Cross multiply
    3,126.86x = 4,713.72 × 2,915.46
  4. Step 4: Simplify right side
    3,126.86x = 13,742,647.53
  5. Step 5: Solve for x
    x = 13,742,647.53/3,126.86
  6. Step 6: Final answer
    x = 4,395.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.