Home / 1,315.45-1,973.61-585.03

Finding the Fourth Proportional to 1,315.45, 1,973.61 and 585.03

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Solution

The fourth proportional to 1,315.45, 1,973.61 and 585.03 is: 877.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315.45 : 1,973.61 = 585.03 : x
  2. Step 2: Convert to fraction form
    1,315.45/1,973.61 = 585.03/x
  3. Step 3: Cross multiply
    1,315.45x = 1,973.61 × 585.03
  4. Step 4: Simplify right side
    1,315.45x = 1,154,621.06
  5. Step 5: Solve for x
    x = 1,154,621.06/1,315.45
  6. Step 6: Final answer
    x = 877.74

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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.