Home / 2,276.79-3,139.47-1,646.07

Finding the Fourth Proportional to 2,276.79, 3,139.47 and 1,646.07

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Solution

The fourth proportional to 2,276.79, 3,139.47 and 1,646.07 is: 2,269.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.79 : 3,139.47 = 1,646.07 : x
  2. Step 2: Convert to fraction form
    2,276.79/3,139.47 = 1,646.07/x
  3. Step 3: Cross multiply
    2,276.79x = 3,139.47 × 1,646.07
  4. Step 4: Simplify right side
    2,276.79x = 5,167,787.38
  5. Step 5: Solve for x
    x = 5,167,787.38/2,276.79
  6. Step 6: Final answer
    x = 2,269.77

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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.