Home / 1,876.40-2,587.72-1,433.48

Finding the Fourth Proportional to 1,876.40, 2,587.72 and 1,433.48

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Solution

The fourth proportional to 1,876.40, 2,587.72 and 1,433.48 is: 1,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876.40 : 2,587.72 = 1,433.48 : x
  2. Step 2: Convert to fraction form
    1,876.40/2,587.72 = 1,433.48/x
  3. Step 3: Cross multiply
    1,876.40x = 2,587.72 × 1,433.48
  4. Step 4: Simplify right side
    1,876.40x = 3,709,444.87
  5. Step 5: Solve for x
    x = 3,709,444.87/1,876.40
  6. Step 6: Final answer
    x = 1,976.89

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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.