Home / 1,985.04-2,740.50-1,324.08

Finding the Fourth Proportional to 1,985.04, 2,740.50 and 1,324.08

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Solution

The fourth proportional to 1,985.04, 2,740.50 and 1,324.08 is: 1,827.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985.04 : 2,740.50 = 1,324.08 : x
  2. Step 2: Convert to fraction form
    1,985.04/2,740.50 = 1,324.08/x
  3. Step 3: Cross multiply
    1,985.04x = 2,740.50 × 1,324.08
  4. Step 4: Simplify right side
    1,985.04x = 3,628,641.24
  5. Step 5: Solve for x
    x = 3,628,641.24/1,985.04
  6. Step 6: Final answer
    x = 1,827.99

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1.5x scale

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.