Home / 1,971.48-2,957.34-510.60

Finding the Fourth Proportional to 1,971.48, 2,957.34 and 510.60

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Solution

The fourth proportional to 1,971.48, 2,957.34 and 510.60 is: 765.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.48 : 2,957.34 = 510.60 : x
  2. Step 2: Convert to fraction form
    1,971.48/2,957.34 = 510.60/x
  3. Step 3: Cross multiply
    1,971.48x = 2,957.34 × 510.60
  4. Step 4: Simplify right side
    1,971.48x = 1,510,017.80
  5. Step 5: Solve for x
    x = 1,510,017.80/1,971.48
  6. Step 6: Final answer
    x = 765.93

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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.