Home / 1,430.87-2,146.28-946.08

Finding the Fourth Proportional to 1,430.87, 2,146.28 and 946.08

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Solution

The fourth proportional to 1,430.87, 2,146.28 and 946.08 is: 1,419.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430.87 : 2,146.28 = 946.08 : x
  2. Step 2: Convert to fraction form
    1,430.87/2,146.28 = 946.08/x
  3. Step 3: Cross multiply
    1,430.87x = 2,146.28 × 946.08
  4. Step 4: Simplify right side
    1,430.87x = 2,030,547.85
  5. Step 5: Solve for x
    x = 2,030,547.85/1,430.87
  6. Step 6: Final answer
    x = 1,419.11

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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.