Home / 1,159.19-1,588.95-1,143.62

Finding the Fourth Proportional to 1,159.19, 1,588.95 and 1,143.62

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Solution

The fourth proportional to 1,159.19, 1,588.95 and 1,143.62 is: 1,567.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.19 : 1,588.95 = 1,143.62 : x
  2. Step 2: Convert to fraction form
    1,159.19/1,588.95 = 1,143.62/x
  3. Step 3: Cross multiply
    1,159.19x = 1,588.95 × 1,143.62
  4. Step 4: Simplify right side
    1,159.19x = 1,817,155.00
  5. Step 5: Solve for x
    x = 1,817,155.00/1,159.19
  6. Step 6: Final answer
    x = 1,567.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.