Home / 2,130.32-2,935.16-1,430.48

Finding the Fourth Proportional to 2,130.32, 2,935.16 and 1,430.48

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Solution

The fourth proportional to 2,130.32, 2,935.16 and 1,430.48 is: 1,970.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.32 : 2,935.16 = 1,430.48 : x
  2. Step 2: Convert to fraction form
    2,130.32/2,935.16 = 1,430.48/x
  3. Step 3: Cross multiply
    2,130.32x = 2,935.16 × 1,430.48
  4. Step 4: Simplify right side
    2,130.32x = 4,198,687.68
  5. Step 5: Solve for x
    x = 4,198,687.68/2,130.32
  6. Step 6: Final answer
    x = 1,970.92

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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.