Home / 2,642.79-3,646.56-1,710.75

Finding the Fourth Proportional to 2,642.79, 3,646.56 and 1,710.75

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Solution

The fourth proportional to 2,642.79, 3,646.56 and 1,710.75 is: 2,360.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.79 : 3,646.56 = 1,710.75 : x
  2. Step 2: Convert to fraction form
    2,642.79/3,646.56 = 1,710.75/x
  3. Step 3: Cross multiply
    2,642.79x = 3,646.56 × 1,710.75
  4. Step 4: Simplify right side
    2,642.79x = 6,238,352.52
  5. Step 5: Solve for x
    x = 6,238,352.52/2,642.79
  6. Step 6: Final answer
    x = 2,360.52

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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.