Home / 1,503.46-2,256.60-810.70

Finding the Fourth Proportional to 1,503.46, 2,256.60 and 810.70

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Solution

The fourth proportional to 1,503.46, 2,256.60 and 810.70 is: 1,216.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.46 : 2,256.60 = 810.70 : x
  2. Step 2: Convert to fraction form
    1,503.46/2,256.60 = 810.70/x
  3. Step 3: Cross multiply
    1,503.46x = 2,256.60 × 810.70
  4. Step 4: Simplify right side
    1,503.46x = 1,829,425.62
  5. Step 5: Solve for x
    x = 1,829,425.62/1,503.46
  6. Step 6: Final answer
    x = 1,216.81

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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.