Home / 2,070.49-2,857.66-1,186.30

Finding the Fourth Proportional to 2,070.49, 2,857.66 and 1,186.30

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Solution

The fourth proportional to 2,070.49, 2,857.66 and 1,186.30 is: 1,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.49 : 2,857.66 = 1,186.30 : x
  2. Step 2: Convert to fraction form
    2,070.49/2,857.66 = 1,186.30/x
  3. Step 3: Cross multiply
    2,070.49x = 2,857.66 × 1,186.30
  4. Step 4: Simplify right side
    2,070.49x = 3,390,030.76
  5. Step 5: Solve for x
    x = 3,390,030.76/2,070.49
  6. Step 6: Final answer
    x = 1,637.31

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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.