Home / 5,678.10-8,513.71-2,557.58

Finding the Fourth Proportional to 5,678.10, 8,513.71 and 2,557.58

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Solution

The fourth proportional to 5,678.10, 8,513.71 and 2,557.58 is: 3,834.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.10 : 8,513.71 = 2,557.58 : x
  2. Step 2: Convert to fraction form
    5,678.10/8,513.71 = 2,557.58/x
  3. Step 3: Cross multiply
    5,678.10x = 8,513.71 × 2,557.58
  4. Step 4: Simplify right side
    5,678.10x = 21,774,445.46
  5. Step 5: Solve for x
    x = 21,774,445.46/5,678.10
  6. Step 6: Final answer
    x = 3,834.81

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1.5x scale

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.