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Finding the Fourth Proportional to 934.16, 1,288.72 and 541.08

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Solution

The fourth proportional to 934.16, 1,288.72 and 541.08 is: 746.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.16 : 1,288.72 = 541.08 : x
  2. Step 2: Convert to fraction form
    934.16/1,288.72 = 541.08/x
  3. Step 3: Cross multiply
    934.16x = 1,288.72 × 541.08
  4. Step 4: Simplify right side
    934.16x = 697,300.62
  5. Step 5: Solve for x
    x = 697,300.62/934.16
  6. Step 6: Final answer
    x = 746.45

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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.