Home / 1,657.57-2,283.47-1,420.77

Finding the Fourth Proportional to 1,657.57, 2,283.47 and 1,420.77

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Solution

The fourth proportional to 1,657.57, 2,283.47 and 1,420.77 is: 1,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657.57 : 2,283.47 = 1,420.77 : x
  2. Step 2: Convert to fraction form
    1,657.57/2,283.47 = 1,420.77/x
  3. Step 3: Cross multiply
    1,657.57x = 2,283.47 × 1,420.77
  4. Step 4: Simplify right side
    1,657.57x = 3,244,285.67
  5. Step 5: Solve for x
    x = 3,244,285.67/1,657.57
  6. Step 6: Final answer
    x = 1,957.25

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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.