Home / 3,127.19-4,690.78-1,253.93

Finding the Fourth Proportional to 3,127.19, 4,690.78 and 1,253.93

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Solution

The fourth proportional to 3,127.19, 4,690.78 and 1,253.93 is: 1,880.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.19 : 4,690.78 = 1,253.93 : x
  2. Step 2: Convert to fraction form
    3,127.19/4,690.78 = 1,253.93/x
  3. Step 3: Cross multiply
    3,127.19x = 4,690.78 × 1,253.93
  4. Step 4: Simplify right side
    3,127.19x = 5,881,886.31
  5. Step 5: Solve for x
    x = 5,881,886.31/3,127.19
  6. Step 6: Final answer
    x = 1,880.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.