Home / 1,535.31-2,302.95-439.67

Finding the Fourth Proportional to 1,535.31, 2,302.95 and 439.67

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Solution

The fourth proportional to 1,535.31, 2,302.95 and 439.67 is: 659.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.31 : 2,302.95 = 439.67 : x
  2. Step 2: Convert to fraction form
    1,535.31/2,302.95 = 439.67/x
  3. Step 3: Cross multiply
    1,535.31x = 2,302.95 × 439.67
  4. Step 4: Simplify right side
    1,535.31x = 1,012,543.78
  5. Step 5: Solve for x
    x = 1,012,543.78/1,535.31
  6. Step 6: Final answer
    x = 659.51

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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.