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Finding the Fourth Proportional to 2,143.95, 2,955.90 and 1,701.07

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Solution

The fourth proportional to 2,143.95, 2,955.90 and 1,701.07 is: 2,345.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.95 : 2,955.90 = 1,701.07 : x
  2. Step 2: Convert to fraction form
    2,143.95/2,955.90 = 1,701.07/x
  3. Step 3: Cross multiply
    2,143.95x = 2,955.90 × 1,701.07
  4. Step 4: Simplify right side
    2,143.95x = 5,028,192.81
  5. Step 5: Solve for x
    x = 5,028,192.81/2,143.95
  6. Step 6: Final answer
    x = 2,345.29

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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.