Home / 2,256.93-3,114.45-1,312.57

Finding the Fourth Proportional to 2,256.93, 3,114.45 and 1,312.57

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Solution

The fourth proportional to 2,256.93, 3,114.45 and 1,312.57 is: 1,811.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.93 : 3,114.45 = 1,312.57 : x
  2. Step 2: Convert to fraction form
    2,256.93/3,114.45 = 1,312.57/x
  3. Step 3: Cross multiply
    2,256.93x = 3,114.45 × 1,312.57
  4. Step 4: Simplify right side
    2,256.93x = 4,087,925.85
  5. Step 5: Solve for x
    x = 4,087,925.85/2,256.93
  6. Step 6: Final answer
    x = 1,811.28

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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.