Home / 1,512.30-2,278.74-1,244.40

Finding the Fourth Proportional to 1,512.30, 2,278.74 and 1,244.40

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Solution

The fourth proportional to 1,512.30, 2,278.74 and 1,244.40 is: 1,875.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.30 : 2,278.74 = 1,244.40 : x
  2. Step 2: Convert to fraction form
    1,512.30/2,278.74 = 1,244.40/x
  3. Step 3: Cross multiply
    1,512.30x = 2,278.74 × 1,244.40
  4. Step 4: Simplify right side
    1,512.30x = 2,835,664.06
  5. Step 5: Solve for x
    x = 2,835,664.06/1,512.30
  6. Step 6: Final answer
    x = 1,875.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.