Home / 3,445.72-4,754.40-1,953.28

Finding the Fourth Proportional to 3,445.72, 4,754.40 and 1,953.28

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Solution

The fourth proportional to 3,445.72, 4,754.40 and 1,953.28 is: 2,695.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.72 : 4,754.40 = 1,953.28 : x
  2. Step 2: Convert to fraction form
    3,445.72/4,754.40 = 1,953.28/x
  3. Step 3: Cross multiply
    3,445.72x = 4,754.40 × 1,953.28
  4. Step 4: Simplify right side
    3,445.72x = 9,286,674.43
  5. Step 5: Solve for x
    x = 9,286,674.43/3,445.72
  6. Step 6: Final answer
    x = 2,695.13

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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.