Home / 3,459.40-4,774.08-1,887.64

Finding the Fourth Proportional to 3,459.40, 4,774.08 and 1,887.64

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Solution

The fourth proportional to 3,459.40, 4,774.08 and 1,887.64 is: 2,605.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.40 : 4,774.08 = 1,887.64 : x
  2. Step 2: Convert to fraction form
    3,459.40/4,774.08 = 1,887.64/x
  3. Step 3: Cross multiply
    3,459.40x = 4,774.08 × 1,887.64
  4. Step 4: Simplify right side
    3,459.40x = 9,011,744.37
  5. Step 5: Solve for x
    x = 9,011,744.37/3,459.40
  6. Step 6: Final answer
    x = 2,605.00

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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.