Home / 2,256.14-3,113.55-1,312.08

Finding the Fourth Proportional to 2,256.14, 3,113.55 and 1,312.08

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Solution

The fourth proportional to 2,256.14, 3,113.55 and 1,312.08 is: 1,810.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.14 : 3,113.55 = 1,312.08 : x
  2. Step 2: Convert to fraction form
    2,256.14/3,113.55 = 1,312.08/x
  3. Step 3: Cross multiply
    2,256.14x = 3,113.55 × 1,312.08
  4. Step 4: Simplify right side
    2,256.14x = 4,085,226.68
  5. Step 5: Solve for x
    x = 4,085,226.68/2,256.14
  6. Step 6: Final answer
    x = 1,810.72

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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.