Home / 2,559.18-3,839.58-915.70

Finding the Fourth Proportional to 2,559.18, 3,839.58 and 915.70

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Solution

The fourth proportional to 2,559.18, 3,839.58 and 915.70 is: 1,373.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,559.18 : 3,839.58 = 915.70 : x
  2. Step 2: Convert to fraction form
    2,559.18/3,839.58 = 915.70/x
  3. Step 3: Cross multiply
    2,559.18x = 3,839.58 × 915.70
  4. Step 4: Simplify right side
    2,559.18x = 3,515,903.41
  5. Step 5: Solve for x
    x = 3,515,903.41/2,559.18
  6. Step 6: Final answer
    x = 1,373.84

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1.5x scale

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.