Home / 2,987.29-4,482.69-1,345.15

Finding the Fourth Proportional to 2,987.29, 4,482.69 and 1,345.15

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Solution

The fourth proportional to 2,987.29, 4,482.69 and 1,345.15 is: 2,018.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.29 : 4,482.69 = 1,345.15 : x
  2. Step 2: Convert to fraction form
    2,987.29/4,482.69 = 1,345.15/x
  3. Step 3: Cross multiply
    2,987.29x = 4,482.69 × 1,345.15
  4. Step 4: Simplify right side
    2,987.29x = 6,029,890.45
  5. Step 5: Solve for x
    x = 6,029,890.45/2,987.29
  6. Step 6: Final answer
    x = 2,018.52

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.