Home / 1,925.64-2,656.08-1,400.76

Finding the Fourth Proportional to 1,925.64, 2,656.08 and 1,400.76

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Solution

The fourth proportional to 1,925.64, 2,656.08 and 1,400.76 is: 1,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.64 : 2,656.08 = 1,400.76 : x
  2. Step 2: Convert to fraction form
    1,925.64/2,656.08 = 1,400.76/x
  3. Step 3: Cross multiply
    1,925.64x = 2,656.08 × 1,400.76
  4. Step 4: Simplify right side
    1,925.64x = 3,720,530.62
  5. Step 5: Solve for x
    x = 3,720,530.62/1,925.64
  6. Step 6: Final answer
    x = 1,932.10

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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.