Home / 1,865.42-2,574.75-1,276.14

Finding the Fourth Proportional to 1,865.42, 2,574.75 and 1,276.14

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Solution

The fourth proportional to 1,865.42, 2,574.75 and 1,276.14 is: 1,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.42 : 2,574.75 = 1,276.14 : x
  2. Step 2: Convert to fraction form
    1,865.42/2,574.75 = 1,276.14/x
  3. Step 3: Cross multiply
    1,865.42x = 2,574.75 × 1,276.14
  4. Step 4: Simplify right side
    1,865.42x = 3,285,741.47
  5. Step 5: Solve for x
    x = 3,285,741.47/1,865.42
  6. Step 6: Final answer
    x = 1,761.40

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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.