Home / 2,154.77-2,973.41-1,210.38

Finding the Fourth Proportional to 2,154.77, 2,973.41 and 1,210.38

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Solution

The fourth proportional to 2,154.77, 2,973.41 and 1,210.38 is: 1,670.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.77 : 2,973.41 = 1,210.38 : x
  2. Step 2: Convert to fraction form
    2,154.77/2,973.41 = 1,210.38/x
  3. Step 3: Cross multiply
    2,154.77x = 2,973.41 × 1,210.38
  4. Step 4: Simplify right side
    2,154.77x = 3,598,943.33
  5. Step 5: Solve for x
    x = 3,598,943.33/2,154.77
  6. Step 6: Final answer
    x = 1,670.22

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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.