Home / 2,148.51-3,216.27-1,943.18

Finding the Fourth Proportional to 2,148.51, 3,216.27 and 1,943.18

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Solution

The fourth proportional to 2,148.51, 3,216.27 and 1,943.18 is: 2,908.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.51 : 3,216.27 = 1,943.18 : x
  2. Step 2: Convert to fraction form
    2,148.51/3,216.27 = 1,943.18/x
  3. Step 3: Cross multiply
    2,148.51x = 3,216.27 × 1,943.18
  4. Step 4: Simplify right side
    2,148.51x = 6,249,775.46
  5. Step 5: Solve for x
    x = 6,249,775.46/2,148.51
  6. Step 6: Final answer
    x = 2,908.89

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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.