Home / 1,436.60-2,155.14-706.08

Finding the Fourth Proportional to 1,436.60, 2,155.14 and 706.08

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Solution

The fourth proportional to 1,436.60, 2,155.14 and 706.08 is: 1,059.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436.60 : 2,155.14 = 706.08 : x
  2. Step 2: Convert to fraction form
    1,436.60/2,155.14 = 706.08/x
  3. Step 3: Cross multiply
    1,436.60x = 2,155.14 × 706.08
  4. Step 4: Simplify right side
    1,436.60x = 1,521,701.25
  5. Step 5: Solve for x
    x = 1,521,701.25/1,436.60
  6. Step 6: Final answer
    x = 1,059.24

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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.