Home / 2,087.15-3,130.61-527.13

Finding the Fourth Proportional to 2,087.15, 3,130.61 and 527.13

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Solution

The fourth proportional to 2,087.15, 3,130.61 and 527.13 is: 790.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.15 : 3,130.61 = 527.13 : x
  2. Step 2: Convert to fraction form
    2,087.15/3,130.61 = 527.13/x
  3. Step 3: Cross multiply
    2,087.15x = 3,130.61 × 527.13
  4. Step 4: Simplify right side
    2,087.15x = 1,650,235.81
  5. Step 5: Solve for x
    x = 1,650,235.81/2,087.15
  6. Step 6: Final answer
    x = 790.67

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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.