Home / 1,265.38-1,746.06-705.70

Finding the Fourth Proportional to 1,265.38, 1,746.06 and 705.70

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Solution

The fourth proportional to 1,265.38, 1,746.06 and 705.70 is: 973.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265.38 : 1,746.06 = 705.70 : x
  2. Step 2: Convert to fraction form
    1,265.38/1,746.06 = 705.70/x
  3. Step 3: Cross multiply
    1,265.38x = 1,746.06 × 705.70
  4. Step 4: Simplify right side
    1,265.38x = 1,232,194.54
  5. Step 5: Solve for x
    x = 1,232,194.54/1,265.38
  6. Step 6: Final answer
    x = 973.77

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.