Home / 5,155.10-7,113.93-3,386.60

Finding the Fourth Proportional to 5,155.10, 7,113.93 and 3,386.60

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Solution

The fourth proportional to 5,155.10, 7,113.93 and 3,386.60 is: 4,673.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.10 : 7,113.93 = 3,386.60 : x
  2. Step 2: Convert to fraction form
    5,155.10/7,113.93 = 3,386.60/x
  3. Step 3: Cross multiply
    5,155.10x = 7,113.93 × 3,386.60
  4. Step 4: Simplify right side
    5,155.10x = 24,092,035.34
  5. Step 5: Solve for x
    x = 24,092,035.34/5,155.10
  6. Step 6: Final answer
    x = 4,673.44

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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.