Home / 2,263.08-3,120.69-1,555.53

Finding the Fourth Proportional to 2,263.08, 3,120.69 and 1,555.53

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Solution

The fourth proportional to 2,263.08, 3,120.69 and 1,555.53 is: 2,145.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.08 : 3,120.69 = 1,555.53 : x
  2. Step 2: Convert to fraction form
    2,263.08/3,120.69 = 1,555.53/x
  3. Step 3: Cross multiply
    2,263.08x = 3,120.69 × 1,555.53
  4. Step 4: Simplify right side
    2,263.08x = 4,854,326.92
  5. Step 5: Solve for x
    x = 4,854,326.92/2,263.08
  6. Step 6: Final answer
    x = 2,145.01

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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.