Home / 1,655.59-2,284.75-899.40

Finding the Fourth Proportional to 1,655.59, 2,284.75 and 899.40

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Solution

The fourth proportional to 1,655.59, 2,284.75 and 899.40 is: 1,241.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.59 : 2,284.75 = 899.40 : x
  2. Step 2: Convert to fraction form
    1,655.59/2,284.75 = 899.40/x
  3. Step 3: Cross multiply
    1,655.59x = 2,284.75 × 899.40
  4. Step 4: Simplify right side
    1,655.59x = 2,054,904.15
  5. Step 5: Solve for x
    x = 2,054,904.15/1,655.59
  6. Step 6: Final answer
    x = 1,241.20

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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.