Home / 3,130.16-4,319.60-1,713.81

Finding the Fourth Proportional to 3,130.16, 4,319.60 and 1,713.81

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Solution

The fourth proportional to 3,130.16, 4,319.60 and 1,713.81 is: 2,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.16 : 4,319.60 = 1,713.81 : x
  2. Step 2: Convert to fraction form
    3,130.16/4,319.60 = 1,713.81/x
  3. Step 3: Cross multiply
    3,130.16x = 4,319.60 × 1,713.81
  4. Step 4: Simplify right side
    3,130.16x = 7,402,965.11
  5. Step 5: Solve for x
    x = 7,402,965.11/3,130.16
  6. Step 6: Final answer
    x = 2,365.05

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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.