Home / 2,925.18-4,386.51-976.86

Finding the Fourth Proportional to 2,925.18, 4,386.51 and 976.86

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Solution

The fourth proportional to 2,925.18, 4,386.51 and 976.86 is: 1,464.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.18 : 4,386.51 = 976.86 : x
  2. Step 2: Convert to fraction form
    2,925.18/4,386.51 = 976.86/x
  3. Step 3: Cross multiply
    2,925.18x = 4,386.51 × 976.86
  4. Step 4: Simplify right side
    2,925.18x = 4,285,006.16
  5. Step 5: Solve for x
    x = 4,285,006.16/2,925.18
  6. Step 6: Final answer
    x = 1,464.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.