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Finding the Fourth Proportional to 3,459.98, 4,774.71 and 1,888.07

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Solution

The fourth proportional to 3,459.98, 4,774.71 and 1,888.07 is: 2,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.98 : 4,774.71 = 1,888.07 : x
  2. Step 2: Convert to fraction form
    3,459.98/4,774.71 = 1,888.07/x
  3. Step 3: Cross multiply
    3,459.98x = 4,774.71 × 1,888.07
  4. Step 4: Simplify right side
    3,459.98x = 9,014,986.71
  5. Step 5: Solve for x
    x = 9,014,986.71/3,459.98
  6. Step 6: Final answer
    x = 2,605.50

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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.