Home / 1,420.31-2,130.12-598.60

Finding the Fourth Proportional to 1,420.31, 2,130.12 and 598.60

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Solution

The fourth proportional to 1,420.31, 2,130.12 and 598.60 is: 897.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420.31 : 2,130.12 = 598.60 : x
  2. Step 2: Convert to fraction form
    1,420.31/2,130.12 = 598.60/x
  3. Step 3: Cross multiply
    1,420.31x = 2,130.12 × 598.60
  4. Step 4: Simplify right side
    1,420.31x = 1,275,089.83
  5. Step 5: Solve for x
    x = 1,275,089.83/1,420.31
  6. Step 6: Final answer
    x = 897.75

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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.