Home / 1,530.10-2,290.26-798.70

Finding the Fourth Proportional to 1,530.10, 2,290.26 and 798.70

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Solution

The fourth proportional to 1,530.10, 2,290.26 and 798.70 is: 1,195.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.10 : 2,290.26 = 798.70 : x
  2. Step 2: Convert to fraction form
    1,530.10/2,290.26 = 798.70/x
  3. Step 3: Cross multiply
    1,530.10x = 2,290.26 × 798.70
  4. Step 4: Simplify right side
    1,530.10x = 1,829,230.66
  5. Step 5: Solve for x
    x = 1,829,230.66/1,530.10
  6. Step 6: Final answer
    x = 1,195.50

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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.