Home / 2,259.23-3,117.90-1,264.68

Finding the Fourth Proportional to 2,259.23, 3,117.90 and 1,264.68

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Solution

The fourth proportional to 2,259.23, 3,117.90 and 1,264.68 is: 1,745.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.23 : 3,117.90 = 1,264.68 : x
  2. Step 2: Convert to fraction form
    2,259.23/3,117.90 = 1,264.68/x
  3. Step 3: Cross multiply
    2,259.23x = 3,117.90 × 1,264.68
  4. Step 4: Simplify right side
    2,259.23x = 3,943,145.77
  5. Step 5: Solve for x
    x = 3,943,145.77/2,259.23
  6. Step 6: Final answer
    x = 1,745.35

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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.