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Finding the Fourth Proportional to 1,753.94, 2,420.45 and 968.01

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Solution

The fourth proportional to 1,753.94, 2,420.45 and 968.01 is: 1,335.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.94 : 2,420.45 = 968.01 : x
  2. Step 2: Convert to fraction form
    1,753.94/2,420.45 = 968.01/x
  3. Step 3: Cross multiply
    1,753.94x = 2,420.45 × 968.01
  4. Step 4: Simplify right side
    1,753.94x = 2,343,014.96
  5. Step 5: Solve for x
    x = 2,343,014.96/1,753.94
  6. Step 6: Final answer
    x = 1,335.86

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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.