Home / 1,456.04-2,184.48-840.18

Finding the Fourth Proportional to 1,456.04, 2,184.48 and 840.18

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Solution

The fourth proportional to 1,456.04, 2,184.48 and 840.18 is: 1,260.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.04 : 2,184.48 = 840.18 : x
  2. Step 2: Convert to fraction form
    1,456.04/2,184.48 = 840.18/x
  3. Step 3: Cross multiply
    1,456.04x = 2,184.48 × 840.18
  4. Step 4: Simplify right side
    1,456.04x = 1,835,356.41
  5. Step 5: Solve for x
    x = 1,835,356.41/1,456.04
  6. Step 6: Final answer
    x = 1,260.51

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1.5x scale

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.