Home / 1,865.07-2,570.62-1,274.58

Finding the Fourth Proportional to 1,865.07, 2,570.62 and 1,274.58

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Solution

The fourth proportional to 1,865.07, 2,570.62 and 1,274.58 is: 1,756.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.07 : 2,570.62 = 1,274.58 : x
  2. Step 2: Convert to fraction form
    1,865.07/2,570.62 = 1,274.58/x
  3. Step 3: Cross multiply
    1,865.07x = 2,570.62 × 1,274.58
  4. Step 4: Simplify right side
    1,865.07x = 3,276,460.84
  5. Step 5: Solve for x
    x = 3,276,460.84/1,865.07
  6. Step 6: Final answer
    x = 1,756.75

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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.