Home / 3,603.60-4,973.56-2,112.40

Finding the Fourth Proportional to 3,603.60, 4,973.56 and 2,112.40

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Solution

The fourth proportional to 3,603.60, 4,973.56 and 2,112.40 is: 2,915.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.60 : 4,973.56 = 2,112.40 : x
  2. Step 2: Convert to fraction form
    3,603.60/4,973.56 = 2,112.40/x
  3. Step 3: Cross multiply
    3,603.60x = 4,973.56 × 2,112.40
  4. Step 4: Simplify right side
    3,603.60x = 10,506,148.14
  5. Step 5: Solve for x
    x = 10,506,148.14/3,603.60
  6. Step 6: Final answer
    x = 2,915.46

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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.