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Finding the Fourth Proportional to 1,601.54, 2,210.10 and 893.40

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Solution

The fourth proportional to 1,601.54, 2,210.10 and 893.40 is: 1,232.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.54 : 2,210.10 = 893.40 : x
  2. Step 2: Convert to fraction form
    1,601.54/2,210.10 = 893.40/x
  3. Step 3: Cross multiply
    1,601.54x = 2,210.10 × 893.40
  4. Step 4: Simplify right side
    1,601.54x = 1,974,503.34
  5. Step 5: Solve for x
    x = 1,974,503.34/1,601.54
  6. Step 6: Final answer
    x = 1,232.88

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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.