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Finding the Fourth Proportional to 1,955.12, 2,695.04 and 1,457

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Solution

The fourth proportional to 1,955.12, 2,695.04 and 1,457 is: 2,008.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.12 : 2,695.04 = 1,457 : x
  2. Step 2: Convert to fraction form
    1,955.12/2,695.04 = 1,457/x
  3. Step 3: Cross multiply
    1,955.12x = 2,695.04 × 1,457
  4. Step 4: Simplify right side
    1,955.12x = 3,926,673.28
  5. Step 5: Solve for x
    x = 3,926,673.28/1,955.12
  6. Step 6: Final answer
    x = 2,008.41

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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.