Home / 2,134.16-2,944.20-1,435.28

Finding the Fourth Proportional to 2,134.16, 2,944.20 and 1,435.28

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Solution

The fourth proportional to 2,134.16, 2,944.20 and 1,435.28 is: 1,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.16 : 2,944.20 = 1,435.28 : x
  2. Step 2: Convert to fraction form
    2,134.16/2,944.20 = 1,435.28/x
  3. Step 3: Cross multiply
    2,134.16x = 2,944.20 × 1,435.28
  4. Step 4: Simplify right side
    2,134.16x = 4,225,751.38
  5. Step 5: Solve for x
    x = 4,225,751.38/2,134.16
  6. Step 6: Final answer
    x = 1,980.05

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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.