Home / 1,999.08-3,000.75-1,307.14

Finding the Fourth Proportional to 1,999.08, 3,000.75 and 1,307.14

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Solution

The fourth proportional to 1,999.08, 3,000.75 and 1,307.14 is: 1,962.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999.08 : 3,000.75 = 1,307.14 : x
  2. Step 2: Convert to fraction form
    1,999.08/3,000.75 = 1,307.14/x
  3. Step 3: Cross multiply
    1,999.08x = 3,000.75 × 1,307.14
  4. Step 4: Simplify right side
    1,999.08x = 3,922,400.36
  5. Step 5: Solve for x
    x = 3,922,400.36/1,999.08
  6. Step 6: Final answer
    x = 1,962.10

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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.