Home / 1,925.99-2,656.91-1,208.05

Finding the Fourth Proportional to 1,925.99, 2,656.91 and 1,208.05

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Solution

The fourth proportional to 1,925.99, 2,656.91 and 1,208.05 is: 1,666.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.99 : 2,656.91 = 1,208.05 : x
  2. Step 2: Convert to fraction form
    1,925.99/2,656.91 = 1,208.05/x
  3. Step 3: Cross multiply
    1,925.99x = 2,656.91 × 1,208.05
  4. Step 4: Simplify right side
    1,925.99x = 3,209,666.84
  5. Step 5: Solve for x
    x = 3,209,666.84/1,925.99
  6. Step 6: Final answer
    x = 1,666.50

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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.