Home / 1,877.63-2,590.22-1,214.69

Finding the Fourth Proportional to 1,877.63, 2,590.22 and 1,214.69

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Solution

The fourth proportional to 1,877.63, 2,590.22 and 1,214.69 is: 1,675.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.63 : 2,590.22 = 1,214.69 : x
  2. Step 2: Convert to fraction form
    1,877.63/2,590.22 = 1,214.69/x
  3. Step 3: Cross multiply
    1,877.63x = 2,590.22 × 1,214.69
  4. Step 4: Simplify right side
    1,877.63x = 3,146,304.42
  5. Step 5: Solve for x
    x = 3,146,304.42/1,877.63
  6. Step 6: Final answer
    x = 1,675.68

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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.