Home / 1,938.08-2,674.51-1,130.69

Finding the Fourth Proportional to 1,938.08, 2,674.51 and 1,130.69

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Solution

The fourth proportional to 1,938.08, 2,674.51 and 1,130.69 is: 1,560.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.08 : 2,674.51 = 1,130.69 : x
  2. Step 2: Convert to fraction form
    1,938.08/2,674.51 = 1,130.69/x
  3. Step 3: Cross multiply
    1,938.08x = 2,674.51 × 1,130.69
  4. Step 4: Simplify right side
    1,938.08x = 3,024,050.92
  5. Step 5: Solve for x
    x = 3,024,050.92/1,938.08
  6. Step 6: Final answer
    x = 1,560.33

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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.