Home / 1,430.46-1,973.70-1,036.80

Finding the Fourth Proportional to 1,430.46, 1,973.70 and 1,036.80

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Solution

The fourth proportional to 1,430.46, 1,973.70 and 1,036.80 is: 1,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430.46 : 1,973.70 = 1,036.80 : x
  2. Step 2: Convert to fraction form
    1,430.46/1,973.70 = 1,036.80/x
  3. Step 3: Cross multiply
    1,430.46x = 1,973.70 × 1,036.80
  4. Step 4: Simplify right side
    1,430.46x = 2,046,332.16
  5. Step 5: Solve for x
    x = 2,046,332.16/1,430.46
  6. Step 6: Final answer
    x = 1,430.54

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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.