Home / 4,277.08-6,415.70-1,970.20

Finding the Fourth Proportional to 4,277.08, 6,415.70 and 1,970.20

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Solution

The fourth proportional to 4,277.08, 6,415.70 and 1,970.20 is: 2,955.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,277.08 : 6,415.70 = 1,970.20 : x
  2. Step 2: Convert to fraction form
    4,277.08/6,415.70 = 1,970.20/x
  3. Step 3: Cross multiply
    4,277.08x = 6,415.70 × 1,970.20
  4. Step 4: Simplify right side
    4,277.08x = 12,640,212.14
  5. Step 5: Solve for x
    x = 12,640,212.14/4,277.08
  6. Step 6: Final answer
    x = 2,955.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.