Home / 5,153.84-7,112.30-3,030.76

Finding the Fourth Proportional to 5,153.84, 7,112.30 and 3,030.76

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Solution

The fourth proportional to 5,153.84, 7,112.30 and 3,030.76 is: 4,182.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.84 : 7,112.30 = 3,030.76 : x
  2. Step 2: Convert to fraction form
    5,153.84/7,112.30 = 3,030.76/x
  3. Step 3: Cross multiply
    5,153.84x = 7,112.30 × 3,030.76
  4. Step 4: Simplify right side
    5,153.84x = 21,555,641.41
  5. Step 5: Solve for x
    x = 21,555,641.41/5,153.84
  6. Step 6: Final answer
    x = 4,182.45

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Half scale
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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.