Home / 5,637.70-7,780.24-3,085.63

Finding the Fourth Proportional to 5,637.70, 7,780.24 and 3,085.63

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Solution

The fourth proportional to 5,637.70, 7,780.24 and 3,085.63 is: 4,258.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.70 : 7,780.24 = 3,085.63 : x
  2. Step 2: Convert to fraction form
    5,637.70/7,780.24 = 3,085.63/x
  3. Step 3: Cross multiply
    5,637.70x = 7,780.24 × 3,085.63
  4. Step 4: Simplify right side
    5,637.70x = 24,006,887.62
  5. Step 5: Solve for x
    x = 24,006,887.62/5,637.70
  6. Step 6: Final answer
    x = 4,258.28

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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.