Home / 1,877.10-2,590.38-1,178.34

Finding the Fourth Proportional to 1,877.10, 2,590.38 and 1,178.34

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Solution

The fourth proportional to 1,877.10, 2,590.38 and 1,178.34 is: 1,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.10 : 2,590.38 = 1,178.34 : x
  2. Step 2: Convert to fraction form
    1,877.10/2,590.38 = 1,178.34/x
  3. Step 3: Cross multiply
    1,877.10x = 2,590.38 × 1,178.34
  4. Step 4: Simplify right side
    1,877.10x = 3,052,348.37
  5. Step 5: Solve for x
    x = 3,052,348.37/1,877.10
  6. Step 6: Final answer
    x = 1,626.10

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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.