Home / 7,038.18-9,712.89-3,894.66

Finding the Fourth Proportional to 7,038.18, 9,712.89 and 3,894.66

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Solution

The fourth proportional to 7,038.18, 9,712.89 and 3,894.66 is: 5,374.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038.18 : 9,712.89 = 3,894.66 : x
  2. Step 2: Convert to fraction form
    7,038.18/9,712.89 = 3,894.66/x
  3. Step 3: Cross multiply
    7,038.18x = 9,712.89 × 3,894.66
  4. Step 4: Simplify right side
    7,038.18x = 37,828,404.17
  5. Step 5: Solve for x
    x = 37,828,404.17/7,038.18
  6. Step 6: Final answer
    x = 5,374.74

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.