Home / 1,017.38-1,525.89-286.95

Finding the Fourth Proportional to 1,017.38, 1,525.89 and 286.95

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Solution

The fourth proportional to 1,017.38, 1,525.89 and 286.95 is: 430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017.38 : 1,525.89 = 286.95 : x
  2. Step 2: Convert to fraction form
    1,017.38/1,525.89 = 286.95/x
  3. Step 3: Cross multiply
    1,017.38x = 1,525.89 × 286.95
  4. Step 4: Simplify right side
    1,017.38x = 437,860.93
  5. Step 5: Solve for x
    x = 437,860.93/1,017.38
  6. Step 6: Final answer
    x = 430.38

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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.