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Finding the Fourth Proportional to 1,360.85, 1,865.35 and 1,341.68

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Solution

The fourth proportional to 1,360.85, 1,865.35 and 1,341.68 is: 1,839.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.85 : 1,865.35 = 1,341.68 : x
  2. Step 2: Convert to fraction form
    1,360.85/1,865.35 = 1,341.68/x
  3. Step 3: Cross multiply
    1,360.85x = 1,865.35 × 1,341.68
  4. Step 4: Simplify right side
    1,360.85x = 2,502,702.79
  5. Step 5: Solve for x
    x = 2,502,702.79/1,360.85
  6. Step 6: Final answer
    x = 1,839.07

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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.