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Finding the Fourth Proportional to 1,877.63, 2,810.76 and 1,509.35

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Solution

The fourth proportional to 1,877.63, 2,810.76 and 1,509.35 is: 2,259.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.63 : 2,810.76 = 1,509.35 : x
  2. Step 2: Convert to fraction form
    1,877.63/2,810.76 = 1,509.35/x
  3. Step 3: Cross multiply
    1,877.63x = 2,810.76 × 1,509.35
  4. Step 4: Simplify right side
    1,877.63x = 4,242,420.61
  5. Step 5: Solve for x
    x = 4,242,420.61/1,877.63
  6. Step 6: Final answer
    x = 2,259.46

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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.