Home / 4,707.30-7,060.68-1,420.32

Finding the Fourth Proportional to 4,707.30, 7,060.68 and 1,420.32

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Solution

The fourth proportional to 4,707.30, 7,060.68 and 1,420.32 is: 2,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,707.30 : 7,060.68 = 1,420.32 : x
  2. Step 2: Convert to fraction form
    4,707.30/7,060.68 = 1,420.32/x
  3. Step 3: Cross multiply
    4,707.30x = 7,060.68 × 1,420.32
  4. Step 4: Simplify right side
    4,707.30x = 10,028,425.02
  5. Step 5: Solve for x
    x = 10,028,425.02/4,707.30
  6. Step 6: Final answer
    x = 2,130.40

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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.