Home / 1,047.61-1,445.66-581.89

Finding the Fourth Proportional to 1,047.61, 1,445.66 and 581.89

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Solution

The fourth proportional to 1,047.61, 1,445.66 and 581.89 is: 802.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.61 : 1,445.66 = 581.89 : x
  2. Step 2: Convert to fraction form
    1,047.61/1,445.66 = 581.89/x
  3. Step 3: Cross multiply
    1,047.61x = 1,445.66 × 581.89
  4. Step 4: Simplify right side
    1,047.61x = 841,210.76
  5. Step 5: Solve for x
    x = 841,210.76/1,047.61
  6. Step 6: Final answer
    x = 802.98

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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.