Home / 3,615.80-5,423.70-1,018.76

Finding the Fourth Proportional to 3,615.80, 5,423.70 and 1,018.76

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Solution

The fourth proportional to 3,615.80, 5,423.70 and 1,018.76 is: 1,528.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.80 : 5,423.70 = 1,018.76 : x
  2. Step 2: Convert to fraction form
    3,615.80/5,423.70 = 1,018.76/x
  3. Step 3: Cross multiply
    3,615.80x = 5,423.70 × 1,018.76
  4. Step 4: Simplify right side
    3,615.80x = 5,525,448.61
  5. Step 5: Solve for x
    x = 5,525,448.61/3,615.80
  6. Step 6: Final answer
    x = 1,528.14

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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.