Home / 1,923.40-2,654.67-1,137.70

Finding the Fourth Proportional to 1,923.40, 2,654.67 and 1,137.70

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Solution

The fourth proportional to 1,923.40, 2,654.67 and 1,137.70 is: 1,570.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,923.40 : 2,654.67 = 1,137.70 : x
  2. Step 2: Convert to fraction form
    1,923.40/2,654.67 = 1,137.70/x
  3. Step 3: Cross multiply
    1,923.40x = 2,654.67 × 1,137.70
  4. Step 4: Simplify right side
    1,923.40x = 3,020,218.06
  5. Step 5: Solve for x
    x = 3,020,218.06/1,923.40
  6. Step 6: Final answer
    x = 1,570.25

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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.