Home / 1,515.15-2,271.44-591.35

Finding the Fourth Proportional to 1,515.15, 2,271.44 and 591.35

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Solution

The fourth proportional to 1,515.15, 2,271.44 and 591.35 is: 886.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.15 : 2,271.44 = 591.35 : x
  2. Step 2: Convert to fraction form
    1,515.15/2,271.44 = 591.35/x
  3. Step 3: Cross multiply
    1,515.15x = 2,271.44 × 591.35
  4. Step 4: Simplify right side
    1,515.15x = 1,343,216.04
  5. Step 5: Solve for x
    x = 1,343,216.04/1,515.15
  6. Step 6: Final answer
    x = 886.52

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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.