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Finding the Fourth Proportional to 1,374.04, 1,895.99 and 776.53

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Solution

The fourth proportional to 1,374.04, 1,895.99 and 776.53 is: 1,071.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.04 : 1,895.99 = 776.53 : x
  2. Step 2: Convert to fraction form
    1,374.04/1,895.99 = 776.53/x
  3. Step 3: Cross multiply
    1,374.04x = 1,895.99 × 776.53
  4. Step 4: Simplify right side
    1,374.04x = 1,472,293.11
  5. Step 5: Solve for x
    x = 1,472,293.11/1,374.04
  6. Step 6: Final answer
    x = 1,071.51

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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.