Home / 2,258.79-3,114.75-1,551.69

Finding the Fourth Proportional to 2,258.79, 3,114.75 and 1,551.69

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Solution

The fourth proportional to 2,258.79, 3,114.75 and 1,551.69 is: 2,139.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,258.79 : 3,114.75 = 1,551.69 : x
  2. Step 2: Convert to fraction form
    2,258.79/3,114.75 = 1,551.69/x
  3. Step 3: Cross multiply
    2,258.79x = 3,114.75 × 1,551.69
  4. Step 4: Simplify right side
    2,258.79x = 4,833,126.43
  5. Step 5: Solve for x
    x = 4,833,126.43/2,258.79
  6. Step 6: Final answer
    x = 2,139.70

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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.