Home / 2,070.48-3,106.08-1,855.20

Finding the Fourth Proportional to 2,070.48, 3,106.08 and 1,855.20

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Solution

The fourth proportional to 2,070.48, 3,106.08 and 1,855.20 is: 2,783.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.48 : 3,106.08 = 1,855.20 : x
  2. Step 2: Convert to fraction form
    2,070.48/3,106.08 = 1,855.20/x
  3. Step 3: Cross multiply
    2,070.48x = 3,106.08 × 1,855.20
  4. Step 4: Simplify right side
    2,070.48x = 5,762,399.62
  5. Step 5: Solve for x
    x = 5,762,399.62/2,070.48
  6. Step 6: Final answer
    x = 2,783.12

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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.