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Finding the Fourth Proportional to 1,810.21, 2,715.66 and 577.93

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Solution

The fourth proportional to 1,810.21, 2,715.66 and 577.93 is: 867.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810.21 : 2,715.66 = 577.93 : x
  2. Step 2: Convert to fraction form
    1,810.21/2,715.66 = 577.93/x
  3. Step 3: Cross multiply
    1,810.21x = 2,715.66 × 577.93
  4. Step 4: Simplify right side
    1,810.21x = 1,569,458.49
  5. Step 5: Solve for x
    x = 1,569,458.49/1,810.21
  6. Step 6: Final answer
    x = 867.00

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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.