Home / 5,285.81-7,294.37-2,927.90

Finding the Fourth Proportional to 5,285.81, 7,294.37 and 2,927.90

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Solution

The fourth proportional to 5,285.81, 7,294.37 and 2,927.90 is: 4,040.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.81 : 7,294.37 = 2,927.90 : x
  2. Step 2: Convert to fraction form
    5,285.81/7,294.37 = 2,927.90/x
  3. Step 3: Cross multiply
    5,285.81x = 7,294.37 × 2,927.90
  4. Step 4: Simplify right side
    5,285.81x = 21,357,134.81
  5. Step 5: Solve for x
    x = 21,357,134.81/5,285.81
  6. Step 6: Final answer
    x = 4,040.47

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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.