Home / 2,154.99-2,973.67-1,210.56

Finding the Fourth Proportional to 2,154.99, 2,973.67 and 1,210.56

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Solution

The fourth proportional to 2,154.99, 2,973.67 and 1,210.56 is: 1,670.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.99 : 2,973.67 = 1,210.56 : x
  2. Step 2: Convert to fraction form
    2,154.99/2,973.67 = 1,210.56/x
  3. Step 3: Cross multiply
    2,154.99x = 2,973.67 × 1,210.56
  4. Step 4: Simplify right side
    2,154.99x = 3,599,805.96
  5. Step 5: Solve for x
    x = 3,599,805.96/2,154.99
  6. Step 6: Final answer
    x = 1,670.45

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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.