Home / 1,420.69-2,130.61-598.95

Finding the Fourth Proportional to 1,420.69, 2,130.61 and 598.95

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Solution

The fourth proportional to 1,420.69, 2,130.61 and 598.95 is: 898.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420.69 : 2,130.61 = 598.95 : x
  2. Step 2: Convert to fraction form
    1,420.69/2,130.61 = 598.95/x
  3. Step 3: Cross multiply
    1,420.69x = 2,130.61 × 598.95
  4. Step 4: Simplify right side
    1,420.69x = 1,276,128.86
  5. Step 5: Solve for x
    x = 1,276,128.86/1,420.69
  6. Step 6: Final answer
    x = 898.25

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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.