Home / 5,151.40-7,109.70-4,364.20

Finding the Fourth Proportional to 5,151.40, 7,109.70 and 4,364.20

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Solution

The fourth proportional to 5,151.40, 7,109.70 and 4,364.20 is: 6,023.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.40 : 7,109.70 = 4,364.20 : x
  2. Step 2: Convert to fraction form
    5,151.40/7,109.70 = 4,364.20/x
  3. Step 3: Cross multiply
    5,151.40x = 7,109.70 × 4,364.20
  4. Step 4: Simplify right side
    5,151.40x = 31,028,152.74
  5. Step 5: Solve for x
    x = 31,028,152.74/5,151.40
  6. Step 6: Final answer
    x = 6,023.25

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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.