Home / 1,864.19-2,794.65-710.75

Finding the Fourth Proportional to 1,864.19, 2,794.65 and 710.75

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Solution

The fourth proportional to 1,864.19, 2,794.65 and 710.75 is: 1,065.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.19 : 2,794.65 = 710.75 : x
  2. Step 2: Convert to fraction form
    1,864.19/2,794.65 = 710.75/x
  3. Step 3: Cross multiply
    1,864.19x = 2,794.65 × 710.75
  4. Step 4: Simplify right side
    1,864.19x = 1,986,283.51
  5. Step 5: Solve for x
    x = 1,986,283.51/1,864.19
  6. Step 6: Final answer
    x = 1,065.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.