Home / 1,405.24-2,108.70-1,295.08

Finding the Fourth Proportional to 1,405.24, 2,108.70 and 1,295.08

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Solution

The fourth proportional to 1,405.24, 2,108.70 and 1,295.08 is: 1,943.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.24 : 2,108.70 = 1,295.08 : x
  2. Step 2: Convert to fraction form
    1,405.24/2,108.70 = 1,295.08/x
  3. Step 3: Cross multiply
    1,405.24x = 2,108.70 × 1,295.08
  4. Step 4: Simplify right side
    1,405.24x = 2,730,935.20
  5. Step 5: Solve for x
    x = 2,730,935.20/1,405.24
  6. Step 6: Final answer
    x = 1,943.39

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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.